v4.136.0

Email blind copies

• SDK: r.email.send(projectId, { to, bcc, ... }) takes bcc, one address or an array of up to 5, in raw and template mode. The result, EmailSummary and EmailDetail carry bcc: EmailBccRecipient[] ({ address, status, bounce_type }). A blind copy's bounce shows on its entry and never marks the message failed.
• CLI: run402 email send --bcc <email> (repeatable, up to 5, both modes); the JSON output echoes bcc.
• MCP: reached through run (r.email.send with bcc); no tool change.

The platform sends one message to every address, and no header of any copy names a blind copy. Each blind copy counts as one send against the email limits. A suppressed blind copy refuses the whole send (RECIPIENT_SUPPRESSED, details.field: "bcc"). There is no cc: the platform refuses it.